deps: update dependency com.google.cloud:google-cloud-bigquerystorage-bom to v3.9.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.cloud:google-cloud-bigquerystorage-bom	3.8.1 -> 3.9.0

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Release Notes

googleapis/java-bigquerystorage (com.google.cloud:google-cloud-bigquerystorage-bom)

### [`v3.9.0`](https://togithub.com/googleapis/java-bigquerystorage/blob/HEAD/CHANGELOG.md#390-2024-08-27) [Compare Source](https://togithub.com/googleapis/java-bigquerystorage/compare/v3.8.1...v3.9.0) ##### Features - V1alpha client generation ([#​2615](https://togithub.com/googleapis/java-bigquerystorage/issues/2615)) ([061691c](https://togithub.com/googleapis/java-bigquerystorage/commit/061691ccdfe56ae0813e376b8f1946cd2a41617b)) ##### Dependencies - Update dependency com.google.http-client:google-http-client to v1.45.0 ([#​2616](https://togithub.com/googleapis/java-bigquerystorage/issues/2616)) ([93b30f9](https://togithub.com/googleapis/java-bigquerystorage/commit/93b30f91cbe103ab44d10ca64cf344304f342600))

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